CN204647968U - For reflect from the light of light source optical device and comprise the light fixture of optical device - Google Patents
For reflect from the light of light source optical device and comprise the light fixture of optical device Download PDFInfo
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- CN204647968U CN204647968U CN201420780573.6U CN201420780573U CN204647968U CN 204647968 U CN204647968 U CN 204647968U CN 201420780573 U CN201420780573 U CN 201420780573U CN 204647968 U CN204647968 U CN 204647968U
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Abstract
The utility model relates to the optical device for reflecting the light from light source, is included in and has lower reflector in the stacked arrangement of central shaft and comparatively high reverse--bias device.Lower reflector possess for by the light from light source towards the central area of transmitting compared with high reverse--bias device, the central shaft of this stacked arrangement is through this central area of lower reflector.Light source can be positioned at below this central area, its emitting side is towards these two reflectors, thus make a part for the light launched from light source by lower reflector reflects, the remainder of this light can enter this stacked arrangement through the central area of lower reflector simultaneously, to be reflected by comparatively high reverse--bias device.Optical device may be used for wall lamp, and wherein LED light source provides the indirect lighting for wall surface.The ad hoc structure of this reflector can produce uniform Light distribation, allows to realize compact size simultaneously.
Description
Technical field
The utility model relates to lighting field, particularly relates to a kind of optical device for reflecting the light from light source, and relates to the light fixture comprising such optical device.
Background technology
Wall lamp is quite popular, for illuminating the facade in urban area.It can be classified according to dissimilar.One is floodlighting, and it is used in particular for the building illuminated a long way off; But uniformity is also unsatisfactory, especially around the region near building; In addition, on the front in region, undesirable conical light effect is formed at this significantly.Another kind is linear wash lamp, and its uniformity has been improved much, but effect is still barely satisfactory.In addition, current wall lamp size is large, and this not only unsightly, and needs more space.
Utility model content
The purpose of this utility model is to provide a kind of compact optical equipment, for while reflecting the light from light source, generates uniform Light distribation.
According to the utility model, this optical device is included in has lower reflector in the stacked arrangement of central shaft and comparatively high reverse--bias device, lower reflector and be arranged to reflect from the light of light source compared with each in high reverse--bias device, wherein lower reflector have for by the light from light source towards the central area of transmitting compared with high reverse--bias device, the central shaft of this stacked arrangement is through the central area of this lower reflector.
In other words, this optical device comprises two reflectors: be equipped in the stacking lower reflector compared with low side and the comparatively high reverse--bias device being equipped in this stacking higher-end, wherein lower reflector possesses the region of the heart wherein.Light source can be placed under this central area, its emitting side is towards these two reflectors, thus make the part of light of launching from light source by lower reflector reflects, simultaneously another part via this central area through lower reflector, to be reflected by comparatively high reverse--bias device.The central area of lower reflector can be hole.
In one embodiment, optical device also comprise be placed in lower and compared with the intermediate reflectors between high reverse--bias device, wherein this intermediate reflectors have for by the light from light source towards the central area of transmitting compared with high reverse--bias device, and wherein the central shaft of this stacked arrangement is through central area that is lower and intermediate reflectors, and the central area of lower reflector is greater than the central area of intermediate reflectors.In this embodiment, at least one other reflector is equipped in lower and comparatively between high reverse--bias device.Except comparatively high reverse--bias device, all reflectors all possess central area (such as hole), and the size of central area reduces gradually from lower reflector towards comparatively high reverse--bias device.Light source can be placed on below the central area of lower reflector, its emitting side is towards the reflector of stacked arrangement, thus make a part for the light launched from light source by lower reflector reflects, simultaneously the remainder of this light through this stacked arrangement towards comparatively high reverse--bias device, its part of each higher reflector reflects.
In one embodiment, lower reflector is arranged to the light from light source to be arranged to the light from light source to reflect towards the second target area towards first object regional reflex compared with high reverse--bias device, and first object region is arranged to than the second target area closer to light source.First and second target areas can be positioned in the plane perpendicular to the central shaft of stacked arrangement.
In one embodiment, lower and comprise multiple sub-reflector compared with each in high reverse--bias device, every sub-reflector is arranged to by light towards the position reflection in this plane, and this position is inversely proportional to apart from the distance of central shaft with the distance of sub-reflector distance central shaft.In other words, every sub-reflector is configured by this way, makes certain part of sub-reflector the closer to central shaft, and reverberation just will arrive place farther in plane.
In one embodiment, every sub-reflector is concave mirror.In other words, in the plane being parallel to central shaft, the longitudinal cross-section of every sub-reflector comprises the cross section of convex curve upwards, to make in every sub-reflector substrate basis as concave mirror work, only in its different piece, design specific curvature, thus light is reflected with different directions and luminous intensity over different portions.
In one embodiment, lower and perpendicular on the direction of central shaft, there is the cross section that contour is polygonal shape compared with each in high reverse--bias device.
In one embodiment, lower and comparatively high reverse--bias device be concave mirror, each has seamless reflective surface will, and perpendicular on the direction of central shaft, lower reflector has annular cross section, and comparatively high reverse--bias utensil has circular cross section.
Optical device of the present utility model can be incorporated in light fixture, and wherein this light fixture also comprises light source (it and then can comprise the LED on printed circuit board (PCB)).This light fixture still can comprise translucent (translucent) shell for wrapping up this optical device.In this light fixture, light source can hide by the pattern mask in its light emitting side, thus different patterns can be generated.
The utility model can be applied in various scene, and wherein light source (such as LED-based light source) provides the indirect lighting for target area, and this light source is oriented its head for target region, back.Actual application includes but not limited to wash wall illumination, overhead illumination and square ground illumination.
When the utility model to be used for washing in wall application for illuminating facade, light source does not directly illuminate this front.On the contrary, from light source launch light arrival this front before by lower and comparatively high reverse--bias device reflect.This structure of multiple reflector produces quite uniform Light distribation.In addition, can not form the typical conical area of the close building that existing wall lamp produces, this makes Light distribation become soft and makes it seem more natural.
Can be perceived equably by the people standing on this building front in order to ensure all reverberation from facade, lower on the different stage of stacked arrangement and be responsible for the zones of different illuminating target structures thing front compared with high reverse--bias device, and for each reflector, the different reflecting parts on reflector generate the light (or different light intensity degree) of different directions and amount.In principle, the region indirectly illuminating target structures thing front is responsible for by lower reflector, and the region that this regional compare high reverse--bias device illuminates is closer to light source.
When design is lower and compared with the aspect needing consideration two important during high reverse--bias device.First aspect is the vertical light component of the reverberation from target area (such as facade).When the people that will stand on light fixture and building front is as central point, the reverberation from target area is far away, and the vertical light component of this reverberation will be fewer, and and then the amount of the light that can be perceived by people lower.Therefore, relatively many Light distribation must be entered so more far region to generate more vertical light component.Second aspect is the character of light source.For example, LED light source can produce relatively high luminous intensity in the center of its emitting area.Correspondingly, the light-redirecting around the core that reflector can be designed to LED light source with more highlight strength to farther region to guarantee that all regions of target surface all have good uniformity.Optimised in order to aforementioned two importances according to optical device of the present utility model.In addition, make its emitting surface towards reflector because light source can be equipped to, so also compact size can be realized.
Accompanying drawing explanation
With reference to the accompanying drawing that example embodiment of the present utility model is shown, these and other aspects of the present utility model will be described now in detail, wherein:
Fig. 1 is the perspective view of the optical device according to embodiment of the present utility model;
Fig. 2 is the photodistributed schematic diagram utilizing the optical device of Fig. 1 to obtain;
Fig. 3 is the perspective view of the optical device according to embodiment of the present utility model;
Fig. 4 is the perspective view of the optical device according to embodiment of the present utility model;
Fig. 5 is the perspective view of the light fixture according to embodiment of the present utility model;
Fig. 6 illustrates how the light fixture of Fig. 5 can be installed on the front of facade;
Fig. 7 is the perspective view of the embodiment of the light fixture on light source with pattern mask; And
Fig. 8 illustrates according to the optical device of the embodiment of the present utility model technique effect relative to prior art.
Detailed description of the invention
In the following description, the wall lamp with reference to the illumination being used for facade describes the utility model.But it should be noted that this is never restriction scope of the present utility model, the utility model can be applicable to other application equally, and the such as illumination of inner ceiling and the illumination of square ground, only enumerate a few example.
Fig. 1 illustrates the embodiment according to optical device of the present utility model.Optical device 100 comprises two stacking reflectors: lower reflector 110 and comparatively high reverse--bias device 120.Lower reflector 110 possesses hole 1110 at its center, thus makes LED light source 200 can be positioned at the below in hole 1110.LED light source 200 is oriented the reflecting surface of its emitting surface towards these two reflectors, i.e. the lower surface of these two reflectors.Two reflectors include multiple sub-reflector.In the present embodiment, when viewed from the top, comparatively high reverse--bias device 120 looks like hexagon, but dimensionally, it comprises six sub-reflectors 1220, for having the inverted triangle body upwards erect of certain curvature in every sub-reflector substrate basis.From the viewpoint of optics, every sub-reflector is similar to recessed reflector work, because the longitudinal cross-section of every sub-reflector comprises the cross section of convex curve upwards, wherein this longitudinal cross-section is defined as through the cross section in the plane of the central shaft (if or only have a LED source, be then the optical axis of LED light source) of this optical device.Similarly, lower reflector comprises six sub-reflectors 1120, and only the curvature of the convex curve upwards of every sub-reflector is tending towards more level and smooth from its core to marginal portion, and the curvature of higher unit is more precipitous.
Fig. 2 is the photodistributed schematic diagram utilizing the optical device of Fig. 1 to obtain.The embodiment of Fig. 1 is designed to make can by reflected light projects to the region (this region is marked as F in fig. 2) apart from the relatively farther target area of light source compared with high reverse--bias device 120, and lower reflector 110 can by reflected light projects to relative nearer region (being labeled as N).In this embodiment, target area is facade.Such Light distribation is energy efficient, because utilize the light from two reflectors to illuminate target area efficiently, minimizes overlap.In other words, by the different piece of light that projects for illuminating the different piece of target area.In addition, above-mentioned structure can simplify the concrete structure of every sub-reflector and make the whole size of optical device compacter.As further changing or modification, the illuminated area exchanging two reflectors is possible, that is, reverberation can be redirected to nearer region compared with high reverse--bias device and lower reflector is redirected to farther region.Look at the light path compared with high reverse--bias device 120 in Fig. 2, can see, from the core compared with high reverse--bias device 120 (in fig. 2, " " center " or " edge " are defined by the radial distance of the optical axis apart from LED light source) reverberation arrive apart from light source region F farthest; and arrive the region N closer to light source from the reverberation of marginal portion, this is illustrated by the beam pattern of intersecting in fig. 2.This mechanism behind receives Light distribation from the maximum intensity of LED light source compared with the core of high reverse--bias device, and this is the character of LED, that is, the closer to core, generate higher luminous intensity.The region on target wall surface is far away apart from optical device, more horizontal reflection light components will be generated, this horizontal reflection light component is parallel to wall surface and can not be redirected in the eyes of people, and will generate fewer vertical reflection light component, this vertical reflection light component can be perceived by the people standing on wall front.Therefore, in order to realize the uniform Light distribation received by the people standing on building front, the vertical reflection light component of more far region on wall must be strengthened.Notice in figure and these horizontal and vertical light components are not shown, but, owing to having the mathematical knowledge of resolution of vectors, it will be appreciated by those skilled in the art that this point.On the one hand, more light is provided to farther wall area by creatively applying the character of aforementioned LED light source by the reverberation from the core compared with high reverse--bias device 120.On the other hand, the reflecting surface of the core of this reflector is further designed to and has specific curvature and enter this farther wall area to generate more Light distribation.In contrast, as shown in light path, compared with the marginal portion of high reverse--bias device 120 by light-redirecting to the wall area relatively near light source compared with farther region.Because the vertical light component being entered the light of this relatively near wall area by reflection is larger comparatively speaking, so the demand compensated is less.In addition, the marginal portion of this reflector from the less light of LED light source receiving intensity, so make the marginal portion of this reflector correspond to relatively near the wall area of light source be rational.Every sub-reflector 1120/1220 of the embodiment shown in Fig. 1 is designed to have specific curvature to guarantee that the Light distribation on wall can be perceived equably.According to content above, corresponding optical texture and/or curvature design optimally compensate any weak or less vertical light component, realize uniform light effect thus.
Lower reflector 110 is designed to be similar to comparatively high reverse--bias device 120, except being placed in the hole 1110 at the center of lower reflector 110.Suitably select the diameter (D of the centre bore 1110 of lower reflector 110
center), the luminous energy from light source 200 got at reach this compared with the edge of high reverse--bias device 120 and can not be exceeded this direct projection is gone out compared with the edge of high reverse--bias device 120.Note, although lower reflector 110 has hole in this embodiment, in order to the purpose of this utility model, this region can use any form being applicable to transmitting light, such as nonreflective transparent or semitransparent region.
As shown in accompanying drawing 2 and Fig. 8, on the direction of central shaft, compared with the bottom of high reverse--bias device 120 higher than the top edge of low reflector 110 (H>h), to make can reach target area from this compared with the light of high reverse--bias device 120 bottom reflection.See Fig. 8, compared to the technical scheme using a reflector in prior art, according to embodiment of the present utility model, by using comparatively high reverse--bias device 120 and the lower reflector 110 of stacking setting, constant (namely on the direction of central shaft at system thickness, from light source 200 to the distance compared with high reverse--bias device 120 peak), the comparatively high reverse--bias device (D that diameter can be used less
current) realize Expected Results.Thus optical device of the present utility model is structurally compacter.
In order to realize various light effect or meet different in-site installation requirements, optical device of the present utility model can be designed as to be had more than two transmitters.In another embodiment as shown in fig. 3, optical device 100 comprises three reflectors: lower reflector 110, intermediate reflectors 130 and comparatively high reverse--bias device 120, wherein lower and intermediate reflectors wherein the heart possess hole, the hole of lower reflector is greater than the hole of intermediate reflectors.For those application that horizontal space is limited, the present embodiment can be good selection, because light fixture can be designed to more elongated to compensate limited width.In addition, more elongated compared with high reverse--bias device, its place that can arrive in target area is far away.According to previously described technical Analysis, three reflectors can be designed to project light onto three of wall area continuous print parts substantially.Be different from the embodiment described not long ago, three reflectors of the present embodiment each there are eight sub-reflectors.By having more how sub-reflector, Light distribation is not only more meticulous, accurate and even, and can produce more unique lighting pattern.
Fig. 4 illustrates another embodiment according to optical device of the present utility model.Optical device 100 comprises two reflectors: lower reflector 110 and comparatively high reverse--bias device 120, with look like before splice (split joint) embodiment compared with, be both made as single seamless part.By seamless reflector, circular Light distribation can be provided on facade.In addition, seamless reflector manufactures much easier.In order to ensure Light distribation uniform on facade, embodiment before being similar to, these two reflectors of such configuration are to make each reflector (110,120) certain part is the closer to the central shaft of optical device, the luminous intensity of reverberation is higher, and reverberation will arrive place far away on facade.As the example of structure, the top view of lower reflector can be annular, its longitudinal cross-section comprises two symmetries and the convex curve be upwards separated, and is circular compared with the top view of high reverse--bias device, and its longitudinal cross-section comprises the convex curve upwards of two convergences.
Optical device of the present utility model can be used as the assembly of light fixture.Fig. 5 illustrates wall lamp light fixture 10, and it comprises optical device 100 as described previously, LED light source 200, translucent outer envelope 300 and PCB substrate 400.As shown in Figure 5, when light fixture 10 is installed as substrate 400 towards facade and the emitting surface of LED towards two reflectors of optical device 100 time, this reflector will receive the light launched from LED and by its towards wall reflection to be perceived by the people in this wall front.For this light fixture, locate LED like this and be oriented its back of the body towards wall to make it, but its emitting surface is towards reflector, this can be more clearly visible in figure 6.Stacking reflector and the relative position of LED light source and directed contribute to utilizing this light fixture to obtain compact size and uniform light effect.
In embodiment in the figure 7, pattern mask 500 is equipped on LED light source 200 to make it possible to show various peculiar light pattern on wall.
In addition, by research accompanying drawing, disclosure and appended claim, those skilled in the art can understand when the utility model that practice calls is protected and realize the modification for the disclosed embodiments.For example, application target is depended on, disclosed in the shape of these reflectors or different arrangement can be different from the example shown in the series of figures.
In the claims, word " comprises " does not get rid of other elements or step, and indefinite article "a" or "an" is not got rid of multiple.
Claims (11)
1. for the optical device (100) of reflection from the light of light source (200), described optical device is included in has lower reflector (110) in the stacked arrangement of central shaft and comparatively high reverse--bias device (120), described lower reflector and be describedly arranged to reflect from the light of described light source compared with each in high reverse--bias device, wherein said lower reflector have for by the light from described light source towards described central area (1110) of transmitting compared with high reverse--bias device, the described central shaft of described stacked arrangement is through the described central area of described lower reflector.
2. described optical device according to claim 1, wherein said lower reflector is arranged to the light from described light source to be wherein saidly arranged to the light from described light source to reflect towards the second target area compared with high reverse--bias device towards first object regional reflex, and described first object region is arranged to than described second target area closer to described light source.
3. described optical device according to claim 2, wherein said first and second target areas are positioned in the plane perpendicular to described central shaft.
4. described optical device according to claim 3, wherein said lower and comprise multiple sub-reflector (1120 compared with each in high reverse--bias device, 1220), every sub-reflector is arranged to by light towards the position reflection in described plane, and described position is inversely proportional to apart from the distance of described central shaft and this sub-reflector apart from the distance of described central shaft.
5. described optical device according to claim 4, wherein every sub-reflector is concave mirror.
6. described optical device according to claim 5 is wherein, on the direction perpendicular to described central shaft, described lower and have compared with each in high reverse--bias device the cross section that contour is polygonal shape.
7. described optical device according to claim 3, wherein said lower and comparatively high reverse--bias device be concave mirror, each has seamless reflective surface will, and wherein, on the direction perpendicular to described central shaft, described lower reflector has annular cross section, and described comparatively high reverse--bias utensil has circular cross section.
8. the described optical device any one of foregoing Claims, also comprise lower described in being placed in and compared with the intermediate reflectors (130) between high reverse--bias device, this intermediate reflectors have for by from described light source light towards described compared with high reverse--bias device transmit central area, the described central shaft of described optical device is through the described central area of described lower and intermediate reflectors, and the described central area of described lower reflector is greater than the described central area of described intermediate reflectors.
9. light fixture (10), comprises the optical device (100) any one of foregoing Claims, and comprise be positioned in described in the described light source (200) of below of lower reflector, and the translucent outer envelope (300) of the described optical device of parcel.
10. described light fixture according to claim 9, wherein said light source is hidden by pattern mask (500).
11. described light fixtures any one of claim 9 and 10, wherein said light source comprises LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420780573.6U CN204647968U (en) | 2013-12-12 | 2014-12-12 | For reflect from the light of light source optical device and comprise the light fixture of optical device |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| WOPCT/CN2013/001554 | 2013-12-12 | ||
| CN2013001554 | 2013-12-12 | ||
| EP13197791 | 2013-12-17 | ||
| EP13197791.0 | 2013-12-17 | ||
| CN201420780573.6U CN204647968U (en) | 2013-12-12 | 2014-12-12 | For reflect from the light of light source optical device and comprise the light fixture of optical device |
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| Publication Number | Publication Date |
|---|---|
| CN204647968U true CN204647968U (en) | 2015-09-16 |
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| CN201420780573.6U Expired - Fee Related CN204647968U (en) | 2013-12-12 | 2014-12-12 | For reflect from the light of light source optical device and comprise the light fixture of optical device |
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| CN (1) | CN204647968U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351811A (en) * | 2015-11-17 | 2016-02-24 | 浙江农林大学 | Compact multilayer reflecting type lighting system |
| CN107435850A (en) * | 2016-05-26 | 2017-12-05 | 台达电子工业股份有限公司 | Wide-angle illumination light source |
| US10753573B2 (en) | 2018-11-09 | 2020-08-25 | Nichia Corporation | Optical device and lighting device |
| CN111692575A (en) * | 2020-07-23 | 2020-09-22 | 青岛易来智能科技股份有限公司 | Optical element, optical module and lighting device having the same |
| JP2021072160A (en) * | 2019-10-29 | 2021-05-06 | 日亜化学工業株式会社 | Optical device and lighting device |
-
2014
- 2014-12-12 CN CN201420780573.6U patent/CN204647968U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351811A (en) * | 2015-11-17 | 2016-02-24 | 浙江农林大学 | Compact multilayer reflecting type lighting system |
| CN105351811B (en) * | 2015-11-17 | 2018-11-27 | 浙江农林大学 | A kind of compact multilayer reflective lighting system |
| CN107435850A (en) * | 2016-05-26 | 2017-12-05 | 台达电子工业股份有限公司 | Wide-angle illumination light source |
| CN107435850B (en) * | 2016-05-26 | 2019-12-20 | 台达电子工业股份有限公司 | Wide-angle illumination light source |
| US10753573B2 (en) | 2018-11-09 | 2020-08-25 | Nichia Corporation | Optical device and lighting device |
| JP2021072160A (en) * | 2019-10-29 | 2021-05-06 | 日亜化学工業株式会社 | Optical device and lighting device |
| JP7316518B2 (en) | 2019-10-29 | 2023-07-28 | 日亜化学工業株式会社 | Optical and lighting equipment |
| CN111692575A (en) * | 2020-07-23 | 2020-09-22 | 青岛易来智能科技股份有限公司 | Optical element, optical module and lighting device having the same |
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Inventor after: Yan Caijie Inventor after: Zeng Xu Inventor after: Song Gang Inventor before: C. Yna Inventor before: X. Zeng Inventor before: G. Song |
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Effective date of registration: 20170324 Address after: Eindhoven Patentee after: KONINKL PHILIPS N.V. Address before: Holland Ian Deho Finn Patentee before: Koninkl Philips Electronics NV |
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